Andy:
I forgot my Monday dose (5mg) this week -- until Tuesday morning, when I normally take my pill. I had a little change in my normal routine Monday a.m. @ breakfast, and I figure that's why I forgot it.
I keep extra warfarin in my desk @ work -- 1's and 10's. So I took 2.5mg (1/2 the missed dose) Tuesday a.m., in addition to my normal 5mg. Wednesday a.m., I took my usual 5mg + the balance of the missed dose.
Yesterday (Thursday) I forgot to take my warfarin until I got home from work. So I took it.
I had my annual cardio visit + echo this morning. I tested my INR when I got up and it was 4.1 (was 2.5 on July 14).
The med tech who took me into the examining room after my echo asked who does my INR tests and I said I do, that I have my own tester. She was quite interested, so we chatted a little about it.
When my cardio came in, he asked how my testing was going, and I told him about the missed doses and how I handled them. He nodded and said, "You've got it under control. You're doing just as well as the nurses do here (at the practice's anticoagulation clinic)."
I figure my 4.1 was a little jumbled because of making up for the missed dose. Ordinarily, I would not have tested so quickly after adjusting for a missed dose. But ... I did have a cardio appointment and needed that INR number ... just in case he asked.